Kayser, Boris (1964) Dynamical model of the sigma hyperon. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-09232002-105204
NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document.
In the spirit of the bootstrap hypothesis, a dynamical model is developed for the [sigma] hyperon, taking into account the [...] and [...] channels. Born amplitudes for the exchange of [...] (1385 Mev), [...] (1405 Mev), and [...] form the inputs to dynamical calculations which utilize an extension of the matrix ND-[superscript 1] method. The properties of all particles other than the [sigma] are taken from experiment, or, where they are experimentally uncertain, estimated on the basis of current theoretical ideas and then varied in the calculations. The cutoff which governs the damping of the input amplitudes at high energies is also varied. It is found that quite a few combinations of the experimental unknowns and the cutoff do lead to a self-consistent [...] bound state, identified as the [sigma], with reasonable values for the mass [...] and couplings [....] and [...]. These results favor the conjecture that the [sigma] is a composite particle.
|Item Type:||Thesis (Dissertation (Ph.D.))|
|Degree Grantor:||California Institute of Technology|
|Division:||Physics, Mathematics and Astronomy|
|Thesis Availability:||Public (worldwide access)|
|Defense Date:||20 May 1964|
|Default Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Imported from ETD-db|
|Deposited On:||24 Sep 2002|
|Last Modified:||26 Dec 2012 03:02|
- Final Version
See Usage Policy.
Repository Staff Only: item control page